Ontario Geological Survey
Permanent Link to this Record:
MDI42A10SW00022
| Record Name(s) | Hollinger-Argus DDH S2B-1-80 - 1980, Noranda DDH STK 87-1 - 1987, Hollinger Argus Occurrence - 1980, Reid Lake Group - 1982 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Apr-11 |
| Date Last Modified | 2022-Feb-23 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Stock
Latitude: 48° 32' 42.62" Longitude: -80° 47' 58.74"
UTM Zone: 17 Easting: 514787 Northing: 5376916 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A10SW
Point Location Description: Diamond drill collar S2B-1-80 on former claim P522389
Location Method: Based on Assessment
Access Description: The site is located on the west shore of Reid Lake and is accessible by driving north from highway 101 along the lake access road.
1980: Hollinger Argus Ltd. - DDH-1-899 ft. 1986-88: Noranda Exploration Co. Ltd. and McChip Resources Inc. - ground geophysics, 5 ddh. 2010-2011: Brigus Gold Corp. - airborne geophysics, IP survey
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-3035/OM87-5L-64/63.5093 | 42A10SW0101 | 42A10SW0101 |
| T-6236/2.47692 | 20000006215 | 20000006215 |
| T-6463/2.52927 | 20000007805 | 20000007805 |
| T-1960/15 | 42A10SW0131 | 42A10SW0131 |
| T-3035/2.10012 | 42A10SE0064 | 42A10SE0064 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Tectonic Assemblage: Stoughton-Roquemaure
Geological Age: Archean
Metamorphism Grade: Greenschist
Nov 30, 2015 (C Salo) - Geological mapping, geophysical surveys of the Stock Township area and information derived from exploration overburden and diamond drilling (assessment and exploration files, Resident Geologist's Office, Timmins) indicate that bedrock in the area consists mainly of weakly metamorphosed (greenschist or lower metamorphic facies) volcanic rocks of the (Archean) Stoughton-Roquemaure Group (to the south) and (weakly metamorphosed) interbedded clastic sedimentary and mafic volcanic rocks of the(Archean) Porcupine Group (to the north) which strike east northeast, dip steeply, and face south. The Porcupine-Destor Fault Zone (PDFZ), a regional scale domain of structural (and often lithologic) discontinuity is closely associated with the Stoughton-Roquemaure/Porcupine Group contact. What have been interpreted to be subsidiary 'splay' shears of the Porcupine-Destor Fault Zone (such as the 'Aquarius Break') have been interpreted to occur within Stoughton-Roquemaure Group rocks up to several hundred metres south of the Stoughton-Roquemaure/Porcupine Group contact. Intrusive rocks in the area include narrow (tens of metres in width) generally north striking diabase dikes of the (Proterozoic)Matachewan swarm (Heaman 1989). Feldspar and quartz-feldspar porphyritic felsic rocks which have been variably interpreted to be of intrusive and/or extrusive and/or metasomatic origin are common within and closely associated with the PDFZ (as at the Pominex Ltd./Canarchon Holdings Ltd./Noranda Exploration Co. Ltd. occurrence in Macklem Township; the Hollinger Argus occurrence in Stock Township; and the St. Andrew Goldfields Ltd. Stock Township Mine and Shoot and Porphyry Zone occur, in Taylor Township).
| Rock Type | Rank | Composition | Texture | Relationship | Terrigenous-Clastic-Unsubdivided | 1 | Clastic Sediments | Near |
|---|---|---|---|---|
| Vein | 2 | Quartz | Host | |
| Mafic lava flow-unsubdivided | 3 | Near | ||
| Ultramafic-Unsubdivided | 4 | Breccia | Near | |
| Diorite | 5 | Diorite | Near |
Nov 30, 2015 (A Wilson) - Anomalously elevated gold tenors at the occurrence are known only from diamond drilling. Anomalous gold tenors are hosted by variably altered clastic metasediments, mafic to ultramafic volcanics and diorites which are spatially related to the Porcupine Destor fault.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Pyrrhotite | Economic | Gangue | ||||
| 3 | Sphalerite | Economic | Gangue | ||||
| 4 | Chalcopyrite | Economic | Gangue | ||||
| 5 | Galena | Economic | Gangue | ||||
| 6 | Arsenopyrite | Economic | Gangue | ||||
| Sericite | Alteration | Sericitization | 1 | Unknown | Network | ||
| Carbonate | Alteration | Carbonatization | 2 | Medium | Replacement | ||
| Chlorite | Alteration | Chloritic | 3 | Unknown | Replacement | ||
| Silica | Alteration | Silicification | 4 | Medium | Stockwork | ||
| Talc | Alteration | Steatization | 5 | Unknown | Replacement |
Nov 30, 2015 (A Wilson) - The best assay returned from the Hollinger Argus drill hole was 0.015 oz./t Au over 2 ft from Temiskaming sediments. The best assay reported from the diamond drilling completed by Noranda returned an assay of 1.2 oz./t Au over 0.25 m of diorite. Two assays from STK87-2 returned values of 0.012 and 0.028 oz./t Au over 0.5 m respectively in tectonic breccia. A narrow quartz vein, intersected in DDH STK87-3 returned an assay of 1.81 oz./t Au over 0.5 m.
Dec 07, 2005 (C Salo) - Anomalously elevated gold tenors at the Hollinger Argus occurrence are known only from diamond drilling; due to widespread glacial deposits in the area no bedrock is exposed near the southwest corner of Stock Township. Anomalous gold tenors are hosted by variably talc, chlorite, carbonate, sericite and silica altered clastic sedimentary rock, mafic to ultramafic volcanic rock, and dioritic rock which is spatially associated with the PDFZ (on the property, the PDFZ is inferred (assessment files) to be 200 to 300 m wide and to dip south 65- 75 degrees). The altered rocks are reported (assessment files) to host: a) native gold bearing quartz veins; b) anomalous (greater than 0.01 ounce of gold per ton) gold concentrations associated with pyrite-pyrrhotite stringers; c) anomalous gold concentrations associated with pyritic tectonic breccias; and d) anomalously elevated gold tenors associated with pyrite and chalcopyrite bearing sections of altered and brecciated ultramafic volcanic rocks. Additional sulfide minerals noted in the Hollinger Argus and Noranda Exploration Co. drill logs include sphalerite, galena, and, exclusively within 'quartz feldspar porphyry', arsenopyrite.
| Rank | Classification |
|---|---|
| 1 | Vein |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
Map - Geological series, preliminary results of bedrock samples from the sonic drilling, 1985, Lake Abitibi-Matheson area, District of Cochrane
Publication Number: P2986 Scale: 1:100,000 Date: 1986
Author: Jensen L.S., Steele K.G., McClenaghan M.B., Baker C.L.
Publisher Name: Ontario Geological Survey
Location:
Mono - Mineral occurrences, deposits, and mines of the Black River-Matheson area
Publication Number: OFR5735 Scale: Date: 1990
Author: Bath A.C.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, bedrock samples from the sonic drilling program 1987, Matheson area, District of Cochrane
Publication Number: P3114 Scale: 1:100,000 Date: 1989
Author: Johnstone R.M., Sutcliffe R.H., Steele K.G., Baker C.L., McClenaghan M.B.
Publisher Name: Ontario Geological Survey
Location:
Map - Stock Township
Publication Number: P0038 Scale: 1:15,840 Date: 1997
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines
Location:
Folio - Stock Township, District of Cochrane
Publication Number: GDIF403 Scale: Date: 1997
Author: Kirkland Lake RGO
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian Geology, Shining Tree Area (East Half)
Publication Number: P3389 Scale: 1:30,000 Date: 1999
Author: Johns G.W.
Publisher Name: Ontario Geological Survey
Location:
Map - Geology of Stock Township
Publication Number: P3347 Scale: 1:20,000 Date: 1995
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
Map - Iroquois Falls-Lake Abitibi sheet, District of Cochrane
Publication Number: P0140 Scale: 1:126,720 Date: 1997
Author: Savage W.S., Thomson R., Fenwick K.G.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Matheson-Black sheet, District of Cochrane
Publication Number: P0119 Scale: 1:63,360 Date: 1997
Author: Ginn R.M., Savage W.S., Leahy E.J.
Publisher Name: Ontario Dept. of Mines
Location:
Article - Reconnaissance till sampling program, Matheson-Lake Abitibi area, District of Cochrane
Publication Number: MP141.081 Scale: Date: 1997
Author: Steele K.G.
Publisher Name: Ontario Geological Survey
Location:
Article - Quaternary geology and geochemical exploration in the Matheson area
Publication Number: MP136.294 Scale: Date: 1997
Author: McClenaghan M.B., Lavin O.P., Nichol I., Shaw J.
Publisher Name: Ontario Geological Survey
Location:
Article - A gravity survey in the Iroquois Falls-Lake Abitibi area, District of Cochrane
Publication Number: MP137.074 Scale: Date: 1997
Author: Gupta V.K., Johnstone R.M.
Publisher Name: Ontario Geological Survey
Location:
Article - Quaternary geology and geochemical exploration in the Matheson area
Publication Number: MP140.294 Scale: Date: 1997
Author: McClenaghan M.B., Lavin O.P., Nichol I., Shaw J.
Publisher Name: Ontario Geological Survey
Location:
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Timmins Resident Geologist District Office